Press for armature-coils



S. W. MORRIS.

PRESS FOR ARMATURE COILS.

APPHcATIoN FILED ocT. 7, 1920.

. 1,393,035. Patented Oct. 11, 1921.

BWM /5 UNITED STATES PATENT OFFICE.

STEPHEN W. MORRIS, OF WHEELING, WEST VIRGINIA, ASSIGNOR OF ONE-IALF TO GEE ELECTRIC COMPANY, 0F W'HEELI WEST VIRGINIA.

NG, WEST VIRGINIA, A CORPORATION 0F PRESS FOR ARMATURE-COILS.

Patented oet. i1, i321.

Application led October 7, 1920. Serial No. 415,437.

To all whom. t may concern.'

Be it known that I, STEPHEN W. Monnis, a citizen of the United States of America, and resident 0f Ilieeling, county of Ohio, and State of West Virginia, have invented certain new and useful Improvements in Presses for Armature-Coils, of which the following is a specification.

This invention relates to hydraulic presses, and it has for itsv primary object to provide a simple and convenient forni of press whereby armature coils for electric motors and the like may be compressed into uniform shape free from irregularities.

In describing the invention in detail, reference is herein had to the accompanying drawings, in which- Figure l is a top plan view of the invention;

Fig. 2 is a front elevation;

Fig. 3 is a longitudinal section on line 3-3, Fig. 1, showing the press open; and- Fig. 4 is a similar section showing the press closed upon an armature coil. t

Referring to said drawings, 1 indicates a bar of approximately inverted L-shape in cross section which is stationa-rily mounted upon a suitable support, as 2, said bar constituting a stationary jaw with which a movable jaw 3 is adapted to coperatefor pressing an armature coil 4, preliminarily shaped as shown in Fig. 3, into a regular substan* tially rectangular form, as shown in Fig. 4. Said jaw 1 has its upper face recessed to form a horizontal ledge 5 adapted for the reception thereon of the preliminarily formed armature coil, said ledge being located in the external angle of the jaw in facing relation to the movable jaw 3.

The jaw 3 carries a forwardly extending guide member or tongue 6 which is slidably received in an opening or guideway 7 provided therefor in the lower part of said jaw 1.

Extending horizontally through alined centrally-located holes 8 and 9 provided therefor in the jaws 1 and 3 is a stem 10 carried concentrically by a piston or plunger 11 which is reciprocable in a cylinder 12. Said cylinder is rigidly attached by means of screws 13 to a bar 14 which is rigidly supported, as upon the outer ends of rods .or bolts 15 mounted in the jaw 1 at opposite sides of the jaw 3.

Interposed between the jaws 1 and 3 and carried in encircling relation to the stem l() of the piston or plunger 11 is a spiral spring 16 having its opposite ends received in sockets 17 and 18 provided, respectively, in said jaws 1 and 3, said spring being designed to normally hold said jaw 3 with' drawn or retracted with respect to the jaw 1 in a position in which it rests against the points of adjustable stops constituted by bolts or screws 19 carried by the bar 14.

Leading into the interior of the cylinder 12 through the bar 14 and the closed outer end of said cylinder are two pipes 2O and 21, of which one is an inlet pipe and the other an outlet pipe for an actuating fluid, preferably oil, introduced under pressure for forcing the plunger 11 forward to carry the jaw 3 into engagement with the jaw 1` against the tension 0f the spring 16.

In practice, the operator seats a portion of the length of the preliminarily shaped armature coil upon the ledge 5 of jaw 1, as shown in Fig. 3, saidledge being made of the precise width which it is desired shall be possessed by the finally shapedcoil. As shaped preliminarily, said coil'is of rough irregular form and, consequently, projects somewhat over the edge of said ledge. The pressurey fiuid is then introduced into the cylinder 12 behind the plunger 11 and actuates the latter to advance, whereby the jaw 3 is forcibly thrust forward against the tension of the spring 16 until it seats against the adjacent face of the jaw l. In moving to said position the jaw 3 engages the laterally projecting portion of a short length of the irregular coil and forces the same onto the ledge, causing it to take the width of the latter and to assume the compressed regular form shown in Fig. 4.

To facilitate the retention of the regular form into which the coil is pressed, as aforesaid, the jaw 1 is heated to a suitable tern` perature, as by means of a gas burner 22 located in a position for directing a blast of flame against said jaw adjacent to the internal angle of the latter, or beneath the horizontally disposed head-portion la of the jaw, thevheat so imparted to the jaw acting to render plastic the adhesive material commonly employed in armature coils of this character.

1. A hydraulic press comprising a cylinder, a plunger in said cylinder, a jaw associated with said plungei` and adapted to be advanced through outward actuation of the latter, a stationary Vjaw with which said movable j aw -coperates when the latter'occupies its advanced position, guidingmeans for said plunger including a stem, and tension means carried by said stem and normally holding said movable jaw and said plunger' in retracted positions, one of said jaws beingoifset to provide a seating ledge.

2. A hydraulic press comprising a cylinder, a plunger in said cylinder, a jaw as- `sociated with said plunger and adapted to be kadvanced through outward actuation oi' the latter, a stationary jaw with which said movable jaw cooperates when the latter occupies its advanced position, a stem carried by said plunger direct-ed through both otsaid jzws, and a spiral springencircling said stein between said jaws whereby said movable jaw and said plunger are normally held retracted with respect to said stationary jaw.

3. A hydraulic press comprising a fixed jaw having a ledgeadapted for the reception oi a portion ot an armature coil, a cylinder located rearward of said jaw, a plunger in said cylinder, a movable jaw disposed intermediate said fixed jaw and said plunger Vand adapted to be advanced by the latter into cooperative relation to said fixed jaw for compressinga coil Vresting upon said ledge, said'jaws having alined holes therein, a stem carried by said plunger extending through said holes, and a spiral spring encircling said stem between said jaws and normally holding the movable jaw and the plunger in retracted position.

1l. A hydraulic press comprising a fixed jaw of invertedL-shape which is recessed in the external angle thereof to form a seating ledge for the reception ofl a length of an armature coil, a cylinder located rearward of said jaw, a plunger operable in said cylinder, a second jaw adapted to be advane-ed into cooperative relation to'saidtixed jaw by outward actuation of said plunger, guiding means for said plunger located eX- terior to said cylinder, and resilient means normally maintainingv said movable "jaw and said plunger in retracted position.

5. A hydraulic )ross comprising a lined jaw of inverted L- ia-pe which is recessed in the external angle thereof to form a seating ledgefor the reception oi" a. length of an armature coil, a. cylinder located rearward ot' said jaw, a plunger operable in said cylinder, a seeondjaw adapted to be advanced into cooperative relation to said fixed jaw by outward actuation of said plunger, a stem concentrically carried by said plunger, said jaws having alined holes therein in which said stem is received, and a spiral spring carried by said stein intermediate said jaws whereby the movable jaw and the plunger are normally held in retracted position.

6. A hydraulic press comprising a iixed jaw of inverted L-shape which is recessed in the external angle thereof to form a ledge for the reception of a length oi an armature coil, a cylinder located rearward'of said jaw,`

a plunger operable in said cylinder, a second jaw adapted to be advanced into cooperative relation to said fixed jaw by outward actuu ation of said plunger, a 4stem carried by said plunger, said jaws having alined holes through whichV said stem is projected, yieldable means carried by said stem Vwhereby the movable jaw and the plunger are normally held in retracted position, and a burner located for directing a blast of flame against said liXed jaw adjacent to the'interior angle of the'latterL In testimony whereof I aiiix my ,signaturel in presence of two subscribinw witnesses. STEPHEN W. MORRIS.- Witn-esses: f

B. BUSKE, R. K. GIPPUN. 

